Null Island

Null Island is the location at zero degrees latitude and zero degrees longitude (0°N 0°E), i.e., where the prime meridian and the equator intersect. The name is often used in mapping software as a placeholder to help find and correct database entries that have erroneously been assigned the coordinates 0,0. Although "Null Island" started as a joke within the geospatial community, it has become a useful means of addressing a recurring issue in geographic information science.

Null Island
The weather buoy moored at the coordinates of Null Island, in the Gulf of Guinea at 0°N 0°E
Null Island
The point of intersection of the prime meridian and the equator, in the Gulf of Guinea
Geography
Coordinates0°N 0°E
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